Speaker



FIG. 1 is a top front perspective view of a speaker showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is an enlarged detail view of the right side of the speaker as shown in FIG. 5.

The broken lines illustrating portions of the speaker are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a speaker, as shown and described. 